Device for investigating the circulation of blood in human body parts and the like, comprising at least one ultrasonic transmitting and receiving device

摘要

In a device for investigating the circulation of blood in human body parts, comprising at least one ultrasonic transmitting and receiving device and an evaluation device, downstream of the receiving device, for detecting the frequency difference between transmitted and received ultrasonic signals on the basis of the Doppler effect, and having a device for converting the frequency differences detected by the evaluation device into a signal which can be perceived by an operator, for the purpose of detecting the flow relationships in the blood vessels of organs, in particular, it is provided that it comprises a scanning arrangement (4) for the defined positional and angular adjustment of the transmitting or receiving device(s) (2 and 3, respectively) as a function of points of the scanned body area (1), a transit time discriminator (10) and an intermediate storage device (14) for the intermediate storage of a signal assigned to a specific point of the body area (1) and transmitted by the evaluation device (9), and a converting device (11) for representing this output signal in a spatially assigned fashion. IMAGE